This is the story of a family held hostage by their own house pet. We're not talking about a big dog either. We're talking about that guy, a 22-pound cat named lux all playing out in a dramatic 911 call. He may look cute and cuddly but don't make this cat angry. I have a kind of a particular emergency here. Reporter: Lux, a 22-pound himalayan hold his family hostage in their bathroom forcing them to call 911 for help. My cat attacked us -- a 7-month-old child and I kicked the but butt the car in the rear and it has went off over the edge and we aren't safe around the cat. It's a very large himalayan and we're trapped in our bedroom. He won't let us out of our door. Reporter: Lee palmer and his girlfriend Teresa said it turned ferocious after their son Jesse pulled its tail. Palmer kicked the cat which sent lux into a rage. He then chased the family including their dog into the bedroom. Every time we opened the door the cat would his. He's really bad right now. He's charging us. He's at our door, bedroom door. One moment, okay. Do you hear him screaming? That was the cat. I hear him. Keep your door shut. Reporter: Lux was eventually caught by police and placed behind bars. The bars of a crate, that is. The cat did not want to get back in the cage. That was for sure. Reporter: In a Facebook post early this morning, palmer writes "The cat is very loved. That is why he is still here. We had the option to let the animal control take him but decided to give him a chance. I'm a very caring hard-working father that cares about my son, cat, dog and girlfriend. I did kick him away from my son. You would too." I learned a very young 4-year-old, depth pull a cat's tail. It was a little baby that pulled it. Yeah. Big cat. A very big cat but the mother said because a lot of people are at home snickering, she said it's funny until you are put in that situation. Scary. Can it be a little funny? Not everybody is upset and everybody is okay. Except for lux.

This transcript has been automatically generated and may not be 100% accurate.

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